test molecule config

molecule/default/molecule.yml

@@ -17,6 +17,9 @@ provisioner:
   config_options:
     defaults:
       ansible_managed: Ansible managed
+      duplicate_dict_key: error
+      error_on_undefined_vars: true
+      inject_facts_as_vars: false
     # host_vars:
     #   instance:
     #     ansible_user: ansible